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Bourns Announces Flyback Power Transformer Offering Enhanced DC/DC Power Conversion Efficiency in Isolated Mode

RIVERSIDE, Calif., November 21, 2019 - Bourns, Inc., a leading manufacturer and supplier of electronic components, today announced an addition to the company's flyback power transformer line. Designed to support IEEE 802.3 af-compliant, integrated Power-over-Ethernet (PoE) Powered Device (PD) and Pulse Width Modulation (PWM) controller applications, Bourns® Model SM13117EL provides DC/DC power conversion in isolated mode.

The SM13117EL flyback transformer features 13 watts of output power, 36 - 72 VDC/ 250 kHz input, 12 VDC/1.08 amp output and 1.5k Vrms withstanding voltage. This low profile, small form factor PoE flyback transformer also offers an extended -40 to +125 °C operating temperature range, low leakage inductance and excellent EMI performance. Ensuring safe operation, the electrical insulation of the transformer complies with the UL 1446 Class B (130 °C) Insulation System. The transformer bobbin carries the UL 94 V-0 flammability rating.

The features of Bourns' latest flyback power transformer make it an excellent power conversion solution for a broad range of PoE-powered devices including VoIP phones, WLAN access points and network cameras as well as with integrated PoE PD interface and PWM controllers offered by several leading IC manufacturers.

Bourns® Model SM13117EL flyback power transformer is available now and is RoHS compliant*. For more detailed information, please refer to the datasheet:

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.

About Bourns

Bourns, Inc., is a leading manufacturer and supplier of position and speed sensors, circuit protection solutions, magnetic components, microelectronic modules, panel controls and resistive products. Headquartered in Riverside, California, USA, Bourns serves a broad range of markets, including automotive, industrial, consumer, communications, non-critical life support medical (low/medium risk), audio and various other market segments. Additional company and product information is available at

Bourns® and the Bourns logo are registered trademarks of Bourns, Inc. and may be used only with the permission of Bourns and proper acknowledgement. Other listed names and brands are trademarks or registered trademarks of their respective owners.

Bourns® products have not been designed for and are not intended for use in "lifesaving," "life-critical" or "life-sustaining" applications nor any other applications where failure or malfunction of the Bourns® product may result in personal injury or death. See Legal Disclaimer Notice

Agency Contact:
Annette Keller
Keller Communication
Company Contact:
David Scofield
Bourns, Inc.
(951) 781-5054